Rockplayer Suddenly Stopped Working

I've been using Rockplayer Universal on my Droid X for about a month. It has worked flawlessly. Today, there was an update which came through the Marketplace which I installed. Now, the program Force Closes every time I try to play a video or go into the "Settings". I went back to the "Downloads" area of Marketplace and when I press Rockplayer Universal it says "Not found"...The requested item could not be found.

What's going on here? Is it possible that the developer realized that they had released a bad update and pulled it from the Marketplace and will put a corrected version on later?

Try going to manage applications on the settings menu, and see if you can roll back to a previous version. Some apps give you the option, instead of "Uninstall", the button will say "Uninstall Updates".